Solubility Practice Test

A student tries to dissolve solid naphthalene ($\mathrm{C_{10}H_8}$), a nonpolar aromatic hydrocarbon, in toluene ($\mathrm{C_7H_8}$), a nonpolar aromatic solvent dominated by London dispersion forces. Is naphthalene likely to be soluble in toluene, and why?

A student tries to dissolve solid sucrose ($\mathrm{C_{12}H_{22}O_{11}}$), which has many O–H groups capable of hydrogen bonding, in hexane ($\mathrm{C_6H_{14}}$), a nonpolar solvent with only London dispersion forces. Is sucrose likely to be soluble in hexane, and why?